B21B 17/02
Tube-rolling by rollers of which the axes are arranged essentially perpendicular to
Official title: with mandrel, {i.e. the mandrel rod contacts the rolled tube over the rod length}(B21B17/08 takes precedence)
B21B17/02 (Tube-rolling by rollers of which the axes are arranged essentially perpendicular to) appears on 106 US grants and 103 published applications in this corpus.
Search patents in B21B- Granted patents
- 106
- Published applications
- 103
- Assignees
- 53
- Inventors
- 219
- Latest grant
- 15 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 1 |
| 2002 | 1 | 1 |
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 1 | 1 |
| 2006 | 2 | 3 |
| 2007 | 2 | 3 |
| 2008 | 3 | 5 |
| 2009 | 0 | 4 |
| 2010 | 2 | 9 |
| 2011 | 2 | 5 |
| 2012 | 5 | 8 |
| 2013 | 8 | 12 |
| 2014 | 6 | 3 |
| 2015 | 6 | 11 |
| 2016 | 8 | 2 |
| 2017 | 6 | 6 |
| 2018 | 3 | 3 |
| 2019 | 4 | 3 |
| 2020 | 3 | 5 |
| 2021 | 2 | 1 |
| 2022 | 4 | 2 |
| 2023 | 2 | 1 |
| 2024 | 1 | 2 |
| 2025 | 1 | 9 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Device and method for handling mandrel rods in a tube rolling mill15 Apr 2025US 12,275,047 B2SMS group GmbH
- Method for manufacturing multi-layered nuclear fuel cladding pipe20 Aug 2024US 12,068,083 B2Gachon University of Industry-Academic Cooperation Foundation
- Guide device for guiding a driving bar of a mandrel or for guiding a mandrel in a rolling process of tubular bodies31 Oct 2023US 11,801,541 B2Danieli & C. Officine Meccaniche SpA
- Method and device for controlling a stretch reducing rolling mill for wall thickness compensation5 Sep 2023US 11,745,235 B2SMS group GmbH
- Piercing machine, and method for producing seamless metal pipe using the same29 Nov 2022US 11,511,326 B2Nippon Steel Corporation
- Adaptive positioning apparatus and method for thin-walled nozzles9 Jul 2026US 2026/0192346 A1Xi'an Space Engine Company Limited
- Modular stand base for spaced stands of a rolling mil20 Nov 2025US 2025/0353052 A1
- Stand housing comprising coupling clamping regions20 Nov 2025US 2025/0353053 A1
- Modular stand base for stands of a rolling mill20 Nov 2025US 2025/0353057 A1
- Threefold rotationally symmetrical stand having an adjustment connector20 Nov 2025US 2025/0353058 A1
Most cited
By later US patents
- Mandrel mill and method of tube rolling by using the same13US 5,657,659 ASumitomo Metal Industries, Ltd. · 1997
- Plugs for use in piercing and elongating mills12US 4,393,677 ANippon Kokan Kabushiki Kaisha · 1983
- Method and apparatus for elongating metal tubes by means of a mandrel mill12US 5,501,091 ASumitomo Metal Industries, Ltd. · 1996
- Rolling unit for rolling rod-shaped or tubular bodies10US 5,765,423 AInnse Innocenti Engineering, S.p.A. · 1998
- Unit for rolling pipes on a mandrel10US 6,041,635 ADemag Italimpianti S.p.A. · 2000